Aftermath Announces 20-Market Atomic Perpetual Baskets on Sui

Aftermath Finance announced “atomic market and time-weighted average price (TWAP) orders” on Nov. 10 for baskets of up to 20 perpetual markets on its Sui exchange.

The release lets traders combine crypto and U.S. stock markets in one basket, then submit long and short positions across as many as 20 markets under a single all-or-nothing execution condition. Each leg has separate sizing and leverage controls, while the basket completes as a single unit.

What does atomic execution change?

A basket can carry long and short positions across several markets. Aftermath’s example pairs a long Bitcoin (BTC) position with a short Nvidia (NVDA) position. It shows how crypto and U.S. stock exposure can sit in the same order.

Each leg carries its own controls. Traders can size each position by weight or dollar amount. They can also choose leverage for each leg.

Even with separate controls, the legs remain tied to one execution outcome. A favorable fill in one market cannot rescue a missed leg elsewhere. That is the practical meaning of the exchange’s atomic rule.

A reduce-only order can close the entire basket at once. That gives traders one closing instruction for a multi-market position, rather than a separate instruction for every market involved.

The defining condition is slippage. Aftermath rejects the entire basket if any leg cannot execute within the trader’s maximum-slippage setting, leaving the trader unable to retain the other legs that did fill. In practical terms, traders receive the complete basket or no basket.

Traders therefore have to evaluate the basket against the condition that can block completion, rather than treating each leg in isolation. That trade-off comes with broader market coverage and fewer separate orders.

How does TWAP scheduling work?

With atomic TWAP, Aftermath divides the basket into slices over either a selected duration or a specified end time, giving the trader control over the execution window. Every market in a slice must execute for that slice to succeed.

Timing and fill success remain separate requirements. A trader can spread execution over the chosen window, but a failed slice does not count as partially completed. The requirement keeps the all-or-nothing structure intact at each step of the schedule.

Traders can retry a failed slice up to five times. They can also randomize slice timing and adjust slice frequency and size. These controls provide several ways to shape the execution schedule.

What does this change for traders?

The feature broadens order construction on Aftermath’s perpetuals venue. A single basket can join crypto and U.S. stock markets, with up to 20 legs governed by the same execution framework.

That framework combines separate leg-level controls with basket-level rejection. Traders can tailor size and leverage for each market, while slippage determines whether the full basket proceeds.

Aftermath’s perpetuals exchange is an on-chain order book on Sui. TokenPost previously reported that Pump.fun had added TWAP orders to its perpetuals platform. Aftermath’s announcement pairs scheduled slices with atomic baskets that can cross crypto and U.S. stock markets.

For traders, the practical effect is fewer separate order instructions for a multi-leg position, but also more conditional execution, because one missed slippage threshold rejects the whole basket. TWAP adds a timing layer, with slices, adjustable schedules and up to five retries per failed slice.

The next market-structure test comes during live trading: whether 20-leg baskets can clear consistently without frequent rejections under the new all-or-nothing rule.